From: Chris Morris <chrismo@...>
Date: 2003-07-17T23:16:45+09:00
Subject: nil_or_empty? on String

I just threw down the following -- it smells like I'm over-complicating 
matters here. Is there a more elegant to do this?

      if (user.nil_or_empty?) && (!pswd.nil_or_empty?)
        raise 'cannot specify pswd without specifying user'
      end

    class String
      def nil_or_empty?
        empty?
      end
    end

    class NilClass
      def nil_or_empty?
        nil?
      end
    end

I wanted to avoid this:

    if (user.nil? || user.empty?) && !(pswd.nil? || pswd.empty?)

...which I guess isn't that bad now that I read it, although 
nil_or_empty? will come in handy if I need to re-use it a lot.

-- 

Chris
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